Device for regulating compressed air in a vehicle tire, breakdown kit comprising such a device and method for regulating compressed air in a vehicle tire with such a device

Description

[0001] The invention relates to a device for regulating the compressed air in a vehicle tire according to the preamble of claim 1, a tire repair kit for sealing and inflating vehicle tires according to the preamble of claim 9, and a method for regulating the compressed air in a vehicle tire with such a device and / or such a tire repair kit according to the preamble of claim 10.

[0002] Puncture repair kits are known in the art and are typically used to connect the kit to the vehicle tire or tire valve via a hose. A puncture repair kit usually includes a compressor for generating compressed air, which is used to pump a sealant into the tire in the event of a puncture and / or to inflate the tire after sealing.

[0003] Release valves in tire repair kits are known, for example, from EP3383630. Such a tire repair kit has an actuable pressure release valve for reducing tire pressure, wherein the pressure release valve is designed in such a way that actuation or pressure release is prevented when a sealant container is connected and / or during the delivery of sealant from the sealant container into the tire.

[0004] For example, JP 2007182036A discloses a connector and a connector set which has the required functions and can be manufactured cost-effectively.

[0005] Furthermore, US5070917A describes a compact device for sealed storage and subsequent dispensing of a predetermined charge of tire sealant into the interior of a tire, comprising a hollow fluid storage and transfer element with an inlet port and an outlet port in which the sealant is arranged.

[0006] DE102015220060A1 discloses a tire connection valve as a connecting element between an inflation hose of a puncture repair kit and a tire valve of a tire, wherein the tire connection valve is designed to be self-closing by means of a spring-loaded valve body and the valve body is opened by applying the tire connection valve to the tire valve and includes a ring seal arranged in its inner cross-section for air and / or sealant, which a) has a sealing surface on the outlet side in the direction of flow for sealing the end face of the screwed-in tire valve, b) has sealing surfaces on its outer circumference and on the inlet side in the direction of flow for sealing the knurled nut against the end piece of the inflation hose, and c) has sealing and contact surfaces on its inner circumference and on the inlet side in the direction of flow for contact with the spring-loaded valve body.

[0007] Current developments in breakdown kits are leading to increasingly smaller components, which is why functional elements, such as a drain valve, must be combined with other elements on the breakdown kit or arranged and / or designed differently, while still ensuring the functionality of the breakdown kit for the consumer.

[0008] This is where the present invention comes in. The object of the invention is to provide a device that simplifies the regulation of compressed air. Furthermore, the object of the invention is to provide a breakdown assistance kit that simplifies use for the user and is improved, particularly with regard to compressed air regulation. Finally, the object of the invention is to provide a method by which the user can more easily regulate the compressed air in a vehicle tire.

[0009] The object of the present invention is achieved by a device for regulating the compressed air in a vehicle tire with the features of claim 1. Furthermore, the object of the invention is achieved by a tire repair kit for sealing and inflating vehicle tires with the features of claim 9 and by a method for regulating the compressed air in a vehicle tire with such a device and / or such a tire repair kit with the features of claim 10.

[0010] The problem is solved by a device for regulating the compressed air in a vehicle tire according to claim 1.

[0011] A significant advantage of the device according to the invention is that it can be used as often as needed between a vehicle tire and a tire repair kit to regulate the compressed air in the vehicle tire. Typically, the pressure in the vehicle tire is built up by a compressor in the tire repair kit and reduced by the pressure release device if the pressure becomes too high. Unlike the sealant bottle and, in many cases, the tire repair kit itself, the device according to the invention does not need to be replaced after use. This is also advantageous from an environmental perspective. Furthermore, it is advantageous because the tire repair kit can be made significantly smaller, which also reduces overall production costs.

[0012] In a preferred embodiment of the invention, the at least one pressure relief device comprises a pressure relief valve. The pressure relief valve is advantageously designed such that it can assume two states, namely that air can escape and that air can flow through the device.

[0013] In a further preferred embodiment of the invention, the pressure release device has at least one pressure element by which the compressed air can be manually regulated. In a particularly preferred embodiment, the pressure element is a push button. A significant advantage for the user is that the compressed air can be regulated as often and easily as desired via the pressure element or push button.

[0014] Preferably, the first connection is designed to be compatible with the tire valve of the vehicle tire. For this purpose, the tire valve typically has a thread that can be screwed into the second connection. The first connection is designed so that the tire valve can be detached. Other connection types are also conceivable. For example, the tire valve could be inserted into the first connection and, in particular, detachably connected to the device by a snap-in mechanism. The advantage is that the user can easily connect and detach the device from the tire valve.

[0015] Preferably, the second connection is designed to be connectable to a tire connector or a hose from a puncture repair kit. For this purpose, the first connection is, for example, a threaded connection or a push-fit fitting, allowing it to be detachably connected to a tire connector or hose.

[0016] In a further preferred embodiment of the invention, the device is reusable. The device can thus advantageously be used for different breakdown assistance kits, so that the device does not need to be replaced.

[0017] Furthermore, the base body preferably comprises or consists of plastic. The base body can be easily manufactured from plastic. It has been found that polyamide, and especially polyamide 66 and / or polyamide 6, is particularly suitable for this purpose, as it is advantageously dimensionally stable. It is even conceivable that the entire device, including the pressure release mechanism, is made of plastic.

[0018] Furthermore, the plastic can be fiber-reinforced, particularly glass fiber-reinforced. For example, glass fiber-reinforced polyamide 66 and / or glass fiber-reinforced polyamide 6 are conceivable. The proportion of glass fiber can vary. Such a material has proven to be particularly dimensionally stable.

[0019] According to the invention, the pressure relief valve is a pressure relief valve. Such a pressure relief valve is designed to automatically release excess air at a maximum pressure of 6 bar, and in particular at a maximum pressure of 3 bar. Advantageously, the user can inflate the vehicle tire without having to worry about the maximum pressure. The regulation is thus automatic. It is also conceivable that the pressure relief valve can additionally be operated manually, so that in addition to the automatic regulation of the maximum pressure, manual regulation by the user is also possible. The advantage is that the compressed air can be regulated at any time and that there is also a safety feature with regard to a maximum limit. Overall, this improves the safety of the device.

[0020] The object of the invention is further achieved by a breakdown kit for sealing and inflating vehicle tires, comprising a compressor for generating compressed air, wherein the breakdown kit includes a described device for regulating the compressed air in a vehicle tire.

[0021] Such a breakdown kit is advantageous because the housing with the compressor is smaller and less expensive to manufacture. Some breakdown kits need to be replaced after use. The advantage of the breakdown kit according to the invention is that the device, including a pressure release mechanism, is reusable.

[0022] The above statements and features regarding the device also apply to the breakdown assistance kit.

[0023] Furthermore, the invention relates to the use of a described device for regulating the compressed air in a vehicle tire and / or a described breakdown kit for sealing and inflating vehicle tires, particularly in the event of a flat tire.

[0024] The object of the invention is also achieved by a method for regulating the compressed air in a vehicle tire according to claim 10.

[0025] Advantageously, the compressed air can be easily regulated by a user using the method according to the invention. It is also conceivable that the compressed air could be regulated not only in the event of a breakdown. Its use with bicycle tires or other inflatable objects is also conceivable, allowing the air to be easily released.

[0026] Further advantages and features of the device and breakdown kit according to the invention, as well as the method, will become apparent from the dependent claims, which relate to advantageous embodiments of the present invention and are not to be understood as limiting. The invention also encompasses combinations of features from different dependent claims, provided these are technically feasible, even if the dependent claims do not relate to each other or if they belong to different claim categories. Furthermore, combinations of preferred and particularly preferred embodiments are also possible, provided these are technically feasible. This also applies to the individual features of the exemplary embodiment discussed below, unless it is obvious to a person skilled in the art that these features are necessarily related. Character description

[0027] Further details and advantages of the present invention will become apparent from the following description of the exemplary embodiment in conjunction with the drawing. This drawing shows Figure 1 shows an embodiment of the device according to the invention in a schematic side view.

[0028] Figure 1Figure 1 shows a possible embodiment of the device 1 according to the invention, comprising a first connection 2 for a tire valve 3 and a second connection 4 for a tire connector 5, as well as the tire valve 3 and the tire connector 5, which is connected to a hose 6. The hose 6 and the tire connector 5 are connected directly or indirectly to a compressor that generates the compressed air. Sealant for sealing the vehicle tire can also typically be transported via the hose 6. The tire connector 5 has a third connection 7, which can be connected to the second connection 4 of the device 1 and / or to the tire valve 3. The first connection 2 of the device 1 according to the invention can be connected to the tire valve 3, so that the device can be arranged between the tire connector 5 and the tire valve 3. The device 1 further comprises a push button 8 and a pressure release valve 9.Manually pressing button 8 by the user opens the pressure release valve 9, allowing the air pressure in the vehicle tire to be regulated. The tire repair kit typically includes a pressure gauge for reading the tire pressure. Reference symbol list:

[0029] 1 Device 2 First connection of the device 3 Tire valve 4 Second connection of the device 5 Tire connector 6 Hose 7 Third connection of the tire connector 8 Push button 9 Pressure release valve

Claims

1. Device (1) for regulating the compressed air in a vehicle tyre, in particular a device which is connectable to a puncture repair kit, comprising a basic body with at least one first attachment (2) for a vehicle tyre and at least one second attachment (4) for a puncture repair kit, wherein the basic body comprises at least one pressure discharge means for regulating the compressed air in a vehicle tyre, characterized in that the pressure discharge means is in the form of a positive pressure valve, the positive pressure valve being designed to discharge excess air automatically at a pressure of at maximum 6 bar.

2. Device (1) according to Claim 1, characterized in that the pressure discharge means comprises a pressure discharge valve (9).

3. Device (1) according to Claim 1 or 2, characterized in that the pressure discharge means has at least one pressure element, preferably a pushbutton (8), by means of which the compressed air can be regulated manually.

4. Device (1) according to one of the preceding claims, characterized in that the first attachment (2) is designed in such a manner that it is connectable to a tyre valve (3) of the vehicle tyre.

5. Device (1) according to one of the preceding claims, characterized in that the second attachment (4) is designed in such a manner that it is connectable to a tyre connector (5) or a tube (6) of a puncture repair kit.

6. Device (1) according to one of the preceding claims, characterized in that the device is reusable.

7. Device (1) according to one of the preceding claims, characterized in that the basic body comprises plastic, in particular polyamide, or consists thereof.

8. Puncture repair kit for sealing and pumping up vehicle tyres, comprising a compressor for generating compressed air, characterized in that the puncture repair kit has a device (1) for regulating the compressed air in a vehicle tyre according to one of Claims 1 to 7.

9. Use of a device (1) for regulating the compressed air in a vehicle tyre according to one of claims 1 to 7 and / or of a puncture repair kit for sealing and pumping up vehicle tyres according to Claim 8, in particular in the event of a puncture of a vehicle tyre.

10. Method for regulating the compressed air in a vehicle tyre with a device (1) according to one of Claims 1 to 7 and / or with a puncture repair kit according to Claim 8, characterized in that the compressed air in the vehicle tyre is regulated via a compressed air discharge means.